#define LLVM_INLINEASM_H
#include "llvm/Value.h"
+#include "llvm/ADT/StringRef.h"
#include <vector>
namespace llvm {
bool HasSideEffects;
bool IsAlignStack;
- InlineAsm(const PointerType *Ty, const std::string &AsmString,
+ InlineAsm(PointerType *Ty, const std::string &AsmString,
const std::string &Constraints, bool hasSideEffects,
bool isAlignStack);
virtual ~InlineAsm();
/// InlineAsm::get - Return the specified uniqued inline asm string.
///
- static InlineAsm *get(const FunctionType *Ty, StringRef AsmString,
+ static InlineAsm *get(FunctionType *Ty, StringRef AsmString,
StringRef Constraints, bool hasSideEffects,
bool isAlignStack = false);
/// the specified constraint string is legal for the type. This returns true
/// if legal, false if not.
///
- static bool Verify(const FunctionType *Ty, StringRef Constraints);
+ static bool Verify(FunctionType *Ty, StringRef Constraints);
// Constraint String Parsing
enum ConstraintPrefix {
static unsigned getFlagWord(unsigned Kind, unsigned NumOps) {
assert(((NumOps << 3) & ~0xffff) == 0 && "Too many inline asm operands!");
+ assert(Kind >= Kind_RegUse && Kind <= Kind_Mem && "Invalid Kind");
return Kind | (NumOps << 3);
}
/// to a previous output operand.
static unsigned getFlagWordForMatchingOp(unsigned InputFlag,
unsigned MatchedOperandNo) {
+ assert(MatchedOperandNo <= 0x7fff && "Too big matched operand");
+ assert((InputFlag & ~0xffff) == 0 && "High bits already contain data");
return InputFlag | Flag_MatchingOperand | (MatchedOperandNo << 16);
}
+ /// getFlagWordForRegClass - Augment an existing flag word returned by
+ /// getFlagWord with the required register class for the following register
+ /// operands.
+ /// A tied use operand cannot have a register class, use the register class
+ /// from the def operand instead.
+ static unsigned getFlagWordForRegClass(unsigned InputFlag, unsigned RC) {
+ // Store RC + 1, reserve the value 0 to mean 'no register class'.
+ ++RC;
+ assert(RC <= 0x7fff && "Too large register class ID");
+ assert((InputFlag & ~0xffff) == 0 && "High bits already contain data");
+ return InputFlag | (RC << 16);
+ }
+
static unsigned getKind(unsigned Flags) {
return Flags & 7;
}
return true;
}
+ /// hasRegClassConstraint - Returns true if the flag contains a register
+ /// class constraint. Sets RC to the register class ID.
+ static bool hasRegClassConstraint(unsigned Flag, unsigned &RC) {
+ if (Flag & Flag_MatchingOperand)
+ return false;
+ unsigned High = Flag >> 16;
+ // getFlagWordForRegClass() uses 0 to mean no register class, and otherwise
+ // stores RC + 1.
+ if (!High)
+ return false;
+ RC = High - 1;
+ return true;
+ }
};